Bimander encoding for Python API #900

Job	Run time
Build (ubuntu-latest)	45s
Build (macos-latest)	59s
linux (x86_64)	1m 22s
linux (x86)	1m 32s
Build (windows-latest)	3m 44s
linux (aarch64)	1m 41s
linux (armv7)	1m 52s
linux (s390x)	1m 40s
linux (ppc64le)	1m 43s
macos (x86_64)	59s
macos (aarch64)	45s
Test python stubs	35s
sdist	19s
Ensure Python API crate version is in sync	4s
windows (x64)	2m 27s
windows (x86)	2m 40s
Release	0s
	23m 7s

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